It’s Friday night—you’ve stripped off the stresses of the work week and slipped into something that has no bad angles. The cold drink in your hand is cleverly juxtaposed against the heat of the bodies piling into the room, a percussive tempo coursing through their veins entrapping them in perpetual motion. Welcome to the club.

Like your own personal sitcom, nightclubs provide you with a cast of characters that will amaze, disgust, and never fail to entertain. While every situation is different, here are 10 people you can’t help but run in to.